If they qualify for VITA that's where they should be going.  Good way to meet other seniors (different volunteer every year) and share their financial situation with strangers.  That is, if it's not one of those VITA sites where you just drop stuff off and hope it gets done when you come back to pick it up.  

Most of my clients are seniors, but I don't discriminate against my younger ones trying to raise kids by charging them more than their grandparents.  If the old folks want a senior discount, that's why we have McDonald's.